反应详情

Heat a solution of 2-(4-fluoro-2-nitro-phenylamino)-5-methyl-benzonitrile (1.747 g, 6.44 mmol) in ethanol (35 ml) to 60° C. and add a solution of tin (II) chloride (6.06 g, 31.96 mmol) in 5.0 N hydrochloric acid (35 ml). Reflux the resulting mixture to reflux for 40 hours. Cool the reaction to room temperature and place in a freezer for 16 hours. The product precipitates from the solution and is collected by filtration to obtain 1.3 g of the title compound (4.68 mmol, 73% yield) as a yellow-green amorphous solid: Mass Spectrum (m/e): 241 (M+1).

1. temperatureReflux the resulting mixture
2. temperatureto reflux for 40 hours
3. temperatureCool
4. customthe reaction to room temperature
5. customThe product precipitates from the solution
6. filtrationis collected by filtration